Loose Women viewers were a little confused to see Robbie Williams turn up in Simon Cowell's interview dressed in some rather interesting garb.

The music mogul was interviewed by Robbie's wife Ayda Field in his home in LA, as he discussed everything from charity work to Britain's Got Talent, with an interruption from his cute son Eric.

But at one point the interview is interrupted as Ayda brings on her "assistant" Robert, who brings her a cup of coffee in front of Simon.

Robbie pretended to be Ayda's assistant (Image: Supplied by WENN)

This assistant had a remarkably similar accent to the Staffordshire singer, and even had a similar body shape and height.

Robert said: "Excuse me, ma'am, I've just brought your coffee.

"I'm new around here. Hello, Simon, I'm Rob!"

He jokingly shook Simon' hand (Image: Supplied by WENN)

At this point Ayda tried to help him put the coffee down, joking to her interviewee that he was "a little rough around the edges."

Simon clearly cottoned on to what was happening and asked Robbie whether he lived around the area.

Assistant Robert replied: "Yeah I just live round the corner.

People commented on Robbie's odd look (Image: Supplied by WENN)

"Is there anything else that you would like me to do?"

Ayda joked that he should go and wash the car, while Simon commended him on his brilliant serving skills.

But fans were a little confused to see the British pop singer in such an odd way, especially sporting a grey beard and slightly weary features.

One added that he was an "attention seeker" and another asked: "#LooseWomen what the heck has Robbie done to himself!"

The interview continued with a light interruption from Simon's son Eric, who took to sticking pegs on his dad's fingers and nose and proceeded to answer some questions from Ayda in the cutest way possible.

Simon was evidently bemused by the stunt (Image: Supplied by WENN)

He said his "daddy" is his favourite judge on Britain's Got Talent, but said he felt he was even better.

Eric also said American Idol was better than the British version of the show, which brought out a hearty cackle from Ayda.